With a noble woman like Zhu Wanting as an example, if those clan members still dare not have sex, then they should feel what is growing on their crotches.\\\\

The instability among the prisoners was resolved, and the courage of the recruits and clan members was tempered. Next, we had to start solving the source of fire salt, one of the key raw materials for making gunpowder.

Since the advent of the musket, continuous live-fire training, coupled with the Battle of Naiheguan, the Battle of Yinmatan and other battles of different intensities, the large amount of gunpowder raw materials Di Lie had stored was being consumed rapidly. Sulfur was relatively good and had relatively large reserves.

, and the proportion of gunpowder in the ratio is not large; there is no need to worry about charcoal, in Taihang, no matter what is lacking, wood will not be missing; the only troublesome thing is the fire salt.

Di Lie rarely had any free time these days, so he had written down the methods of making saltpeter in his memory, and then found some craftsmen with experience in making saltpeter. After comparing them, he realized that in the Song Dynasty, there were also some methods of making saltpeter.

, is quite similar to the local method of making saltpeter in later generations. However, the details of the preparation are still lacking, and the boiled local saltpeter has more impurities and insufficient purity.

So Di Lie set up a salt-making team headed by Aji, the supervisor of the gunpowder team, to take charge of this salt-making work. Although this boy is not old, he has several outstanding advantages: first, loyalty;

He is smart and clever; thirdly, he is very talented in making gunpowder. And making saltpeter is also part of the gunpowder team, so it is appropriate to give him the task.

The method of making saltpeter compiled by Di Lie was roughly similar to the local method of making saltpetre practiced by the Eighth Route Army in the Taihang Mountains in later generations.

The chemical name of fire nitrate is potassium nitrate. The raw materials used to prepare potassium nitrate are nitrate soil and plant ash. Generally, the soil near pig pens, toilets, etc. in rural areas often contains a large amount of organic matter. These organic matter will later be nitrified.

Through the action of bacteria, nitric acid is generated. Nitric acid further interacts with potassium, calcium and magnesium in the soil to generate potassium nitrate and its calcium and magnesium nitrates, which is soil nitrate. The potassium nitrate content in various soil nitrates varies, generally containing 100%.

Several.

In addition to toilets, pigs, and cattle houses, nitrate soil generally exists at the foot of old walls in courtyards, cliff edges, caves, and on the ground that is not easily washed by rain. The nitrate soil is moist and difficult to dry in the sun. It turns slightly purple after being exposed to the sun.

, good saltpetre will explode with sparks when placed on hot red charcoal.

In fact, Di Lie's Tianshu City has a very rich source of saltpeter, let alone excrement. In Tianshu City, there are more than 7,000 war horses alone, and tens of thousands of other cattle, sheep, mules, donkeys and other livestock.

There are also new carnivorous animals such as dogs, rabbits, chickens, ducks, etc. After the Battle of Yinmatan, thousands of Jin Army horses, cattle and mules were seized. Such a large number of livestock can produce hundreds of tons of feces in a day.

, this does not include the daily "production" of more than 30,000 residents...

In the past, these manures were mostly used to fertilize fields or be dried in the sun for heating. In the Song Dynasty, there was no practice of retting manure fields. This was first proposed by Di Lie. Liu Erping was skeptical at first, but after trying it out, the effect of this method was indeed obvious.

Subsequently, it has been widely promoted in Tianshu City.

Therefore, under Liu Erping, a farmer, there was a special fertilizing team composed of the old, weak, sick and disabled from the original Tianping Village. Each man had a manure rake and a back skip to pick up manure. Then they were distributed to the residents of the city.

The feces produced are transported by cart to a place called "Rabbit and Rat Nest" ten miles away from Tianshu City.

This is a low-lying valley. It is surrounded by mountains and receives strong sunlight. It is best used as a manure pile.

The excrement here is piled up like a mountain, and the smell is astounding from two or three miles away. The fertilizing team and the residents who come in and out once a day take fertilizer and irrigate the fields. They all have to cover their mouths and noses with something called a mask invented by the city lord.

It feels better and I can barely get in and out.

However, on this day, the members of the fertilizer team and the residents who harvested fertilizer were surprised to find that a group of nearly a hundred people with unfamiliar faces, pulling dozens of carts, led by a young man, appeared in a mighty manner.

Rabbit nest.

After that, an even more jaw-dropping scene appeared: several of these people actually went close to the foot of the dung mountain without wearing masks. Not only that, but they even lay on the ground and grabbed hold of them with their hands.

I looked at the dung carefully, rubbed it, smelled it, and finally even put it in my mouth and tasted it...

The members of the composting team deal with feces every day, and their noses have long been numb to the odor. They can even chew cooking cakes while working... But the actions of this group made them feel sick. The composting team did not dare to look any further.

They emptied the car of excrement and left in a hurry. Therefore, they naturally did not see that this group of people actually scooped up a large amount of dung, loaded it into a cart, and drove it back to the city.

After the manure, also known as nitrate soil, is transported back to the city, it is all sent to a newly built nitrate-making factory, and then the nitrate extraction process can be carried out.

First, grind the nitrate soil and plant ash separately, then weigh the raw materials according to the ratio of nitrate soil and plant ash of 8:1, mix them into a large specially built pool, and then add hot water of 70 to 80 degrees Celsius.

, the water surface is fully immersed in the raw materials, and then stirred and suction filtered. The whole process lasts about one quarter to two quarters of an hour, and finally the residue is removed and the water is retained, and the filtrate obtained is salt water.

Put the salt water into ten large urns and heat it to evaporate, which is commonly known as "boiling the salt water". Stir continuously during heating to prevent sticking to the bottom and splashing. When two-thirds of the water has evaporated, remove the firewood.

Stop heating. Drop a small amount of mucus on the paper. If you see the mucus condensed into a ball, it means it meets the requirements. At this time, you must immediately add water and filter again while it is hot.

Finally, after the filtrate is naturally cooled, it is suction-filtered again to obtain potassium nitrate crystals. However, this is only crude potassium nitrate crystals. If you want to obtain relatively pure fire salt, you need to re-heat it and suction-filtrate it to remove the impurities.

Removal. When the potassium nitrate crystals are cooled and recrystallized, the white crystals that look very similar to salt to the naked eye are pure fire saltpetre that meets the requirements. At this time, they can be put into production as raw materials for gunpowder.

In Tianshu City, in addition to collecting nitrate from feces, it can also be collected from the foot of the walls of hundreds of years old houses in the city, the foot of the old Great Wall near Naiheguan, the cliffs in the Taihang Mountains and the nearby large and small caves.

A large amount of saltpeter raw materials. With this continuous supply of saltpeter, after being purified through various processes in the saltpeter factory, the bottleneck of fire saltpeter supply was finally broken through.

Although this extraction method yields a very small amount of finished product. From one hundred kilograms of saltpeter soil, at most one or two kilograms of fire saltpeter can be extracted, but it cannot cope with the large amount of raw materials. If hundreds of tons of saltpeter soil are smashed, it will

It can produce several tons of fire and saltpeter. This kind of reserve is enough to support several battles, and the intensity of the battle is no less than that of the Battle of Yinmatan.

In early September, with the first batch of nearly 100 kilograms of gunpowder successfully leaving the factory, the bottleneck of gunpowder was solved. At the same time, thanks to the participation of hundreds of skilled blacksmiths from Luancheng, the casting speed of musket hair troughs was greatly accelerated.

The daily output has reached five. And after plundering millions of kilograms of fine iron stored by the Jin Army in Luancheng, the forging raw materials for the muskets are no longer a problem.

At this time, the number of muskets in the Tenchu ​​Army had reached 300, and they already had the basic equipment for a military exercise.

On the third day of September, Di Lie issued a mobilization order for a large-scale military training of the entire army, and it was scheduled half a month later, that is, September 18th, to select one thousand of the best-trained soldiers and form two battalions to conduct confrontational combat exercises.

.

But before that, Di Lie had to play the role of chief instructor again, because - the female military camp was established! (You are welcome, your support is my biggest motivation.)
Chapter completed!